10100005 has 4 divisors (see below), whose sum is σ = 12120012. Its totient is φ = 8080000.

The previous prime is 10099997. The next prime is 10100009. The reversal of 10100005 is 50000101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2696164 + 7403841 = 1642^2 + 2721^2 .

It is not a de Polignac number, because 10100005 - 2³ = 10099997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009996 + ... + 1010005.

It is an arithmetic number, because the mean of its divisors is an integer number (3030003).

Almost surely, 2^10100005 is an apocalyptic number.

It is an amenable number.

10100005 is a deficient number, since it is larger than the sum of its proper divisors (2020007).

10100005 is an equidigital number, since it uses as much as digits as its factorization.

10100005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020006.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 10100005 is about 3178.0505030600. The cubic root of 10100005 is about 216.1592689643.

Adding to 10100005 its reverse (50000101), we get a palindrome (60100106).

The spelling of 10100005 in words is "ten million, one hundred thousand, five".